Abstract
Multi-material structures made from renewable materials are increasingly being addressed in research and industry. Especially lightweight applications based on wood and polymer materials offer an important opportunity to reduce weight and CO2 emissions, and thus create a sustainable economy. When establishing new material combinations, it is necessary to take economical and efficient manufacturing processes into count to enable the market entry. Therefore, the existing manufacturing processes needed to be adapted and improved in terms of the specific machining characteristic of the wood material. This study targets a combined process where a forming and shear-cutting process is also integrated in an injection-molding tool. The findings on the shear-cutting process of wood veneers are not widely investigated yet. Therefore, process and material-related dependences like cutting velocity, tool shape design, and preconditioning of wood veneers were examined. The target values cutting force and cutting-edge quality were used to describe the relations. The results showed specific damage and fiber fractions of the wood material compared to the isotropic materials (e.g., metal). In addition, low cutting forces appeared by realizing a drawing cut and high cutting speeds. A decrease in the cutting force with a higher moisture content could not be shown for the used wood types.
Highlights
Due to environmental changes, renewable and degradable material solutions are gaining increasing interest as lightweight solutions in industry and academia, in order to reduce emissions (e.g., CO2 ).One highly prioritized topic in the lightweight sector is the combination of natural fibers and wood materials with polymers
When using wood in such material combinations it is usually applied as short fiber or wood flour, e.g., in wood–plastic compound (WPC)
Since wood material is comparable to reinforced materials, some of the findings on the cutting edge might apply for e.g., fiber-reinforced plastics
Summary
Renewable and degradable material solutions are gaining increasing interest as lightweight solutions in industry and academia, in order to reduce emissions (e.g., CO2 ). One highly prioritized topic in the lightweight sector is the combination of natural fibers and wood materials with polymers. When using wood in such material combinations it is usually applied as short fiber or wood flour, e.g., in wood–plastic compound (WPC). To take advantage of the mechanical behavior of the wood structure with its anisotropic characteristic, it is necessary to investigate the material combination of polymer materials with veneer lumber [1] Wood and Polymer Materials for Lightweight Applications. Lightweight materials are used in several industries like aerospace, automotive, or construction. The application of these materials addresses the reduction of weight and CO2 emissions
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call